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/linux/drivers/memory/samsung/
H A Dexynos5422-dmc.c1 // SPDX-License-Identifier: GPL-2.0
10 #include <linux/devfreq-event.h>
101 * struct dmc_opp_table - Operating level desciption
102 * @freq_hz: target frequency in Hz
103 * @volt_uv: target voltage in uV
105 * Covers frequency and voltage settings of the DMC operating mode.
113 * struct exynos5_dmc - main structure describing DMC device
120 * @lock: protects curr_rate and frequency/voltage setting section
121 * @curr_rate: current frequency
122 * @curr_volt: current voltage
[all …]
/linux/Documentation/devicetree/bindings/opp/
H A Dopp-v2-base.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/opp/opp-v2-base.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Viresh Kumar <viresh.kumar@linaro.org>
13 Devices work at voltage-current-frequency combinations and some implementations
25 pattern: '^opp-table(-[a-z0-9]+)?$'
27 opp-shared:
30 their DVFS state together, i.e. they share clock/voltage/current lines.
31 Missing property means devices have independent clock/voltage/current
[all …]
H A Dopp-v1.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/opp/opp-v1.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Viresh Kumar <viresh.kumar@linaro.org>
13 Devices work at voltage-current-frequency combinations and some implementations
19 This binding only supports voltage-frequency pairs.
24 clock-latency:
30 voltage-tolerance:
34 The voltage tolerance in percent. Use OPP tables for new designs instead.
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/linux/Documentation/devicetree/bindings/iio/dac/
H A Dadi,ad5755.yaml1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Analog Devices AD5755 Multi-Channel DAC
10 - Sean Nyekjaer <sean.nyekjaer@prevas.dk>
15 - adi,ad5755
16 - adi,ad5755-1
17 - adi,ad5757
18 - adi,ad5735
19 - adi,ad5737
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H A Dadi,ad5758.yaml1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Michael Hennerich <Michael.Hennerich@analog.com>
19 spi-cpha: true
21 adi,dc-dc-mode:
25 Mode of operation of the dc-to-dc converter
27 In this mode, the AD5758 circuitry senses the output voltage and
28 dynamically regulates the supply voltage, VDPC+, to meet compliance
29 requirements plus an optimized headroom voltage for the output buffer.
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H A Dadi,ad7293.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: AD7293 12-Bit Power Amplifier Current Controller with ADC,
8 DACs, Temperature and Current Sensors
11 - Antoniu Miclaus <antoniu.miclaus@analog.com>
14 Power Amplifier drain current controller containing functionality
15 for general-purpose monitoring and control of current, voltage,
17 SPI-compatible interface.
24 - adi,ad7293
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/linux/Documentation/devicetree/bindings/power/supply/
H A Dbq25890.yaml1 # SPDX-License-Identifier: GPL-2.0
4 ---
6 $schema: http://devicetree.org/meta-schemas/core.yaml#
8 title: Bq25890, bq25892, bq25895 and bq25896 Li-Ion Charger
11 - Sebastian Reichel <sre@kernel.org>
14 - $ref: power-supply.yaml#
19 - enum:
20 - ti,bq25890
21 - items:
22 - enum:
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H A Dbq256xx.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
4 ---
6 $schema: http://devicetree.org/meta-schemas/core.yaml#
11 - Andrew Davis <afd@ti.com>
14 The bq256xx devices are a family of highly-integrated battery charge
15 management and system power management ICs for single cell Li-ion and Li-
19 - https://www.ti.com/lit/ds/symlink/bq25600.pdf
20 - https://www.ti.com/lit/ds/symlink/bq25601.pdf
21 - https://www.ti.com/lit/ds/symlink/bq25600d.pdf
22 - https://www.ti.com/lit/ds/symlink/bq25601d.pdf
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/linux/drivers/gpu/drm/nouveau/nvkm/subdev/clk/
H A Dgm20b.c89 #define DFS_DET_RANGE 6 /* -2^6 ... 2^6-1 */
90 #define SDM_DIN_RANGE 12 /* -2^12 ... 2^12-1 */
99 .coeff_slope = -165230,
136 /* safe frequency we can use at minimum voltage */
162 struct nvkm_subdev *subdev = &clk->base.base.subdev; in gm20b_pllg_read_mnp()
163 struct nvkm_device *device = subdev->device; in gm20b_pllg_read_mnp()
166 gk20a_pllg_read_mnp(&clk->base, &pll->base); in gm20b_pllg_read_mnp()
168 pll->sdm_din = (val >> GPCPLL_CFG2_SDM_DIN_SHIFT) & in gm20b_pllg_read_mnp()
175 struct nvkm_device *device = clk->base.base.subdev.device; in gm20b_pllg_write_mnp()
178 pll->sdm_din << GPCPLL_CFG2_SDM_DIN_SHIFT); in gm20b_pllg_write_mnp()
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/linux/drivers/regulator/
H A DKconfig1 # SPDX-License-Identifier: GPL-2.0-only
3 bool "Voltage and Current Regulator Support"
6 Generic Voltage and Current Regulator support.
8 This framework is designed to provide a generic interface to voltage
9 and current regulators within the Linux kernel. It's intended to
10 provide voltage and current control to client or consumer drivers and
16 to both voltage regulators (where voltage output is controllable) and
17 current sinks (where current output is controllable).
34 tristate "Fixed voltage regulator support"
36 This driver provides support for fixed voltage regulators,
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/linux/Documentation/devicetree/bindings/net/
H A Dmotorcomm,yt8xxx.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Frank Sae <frank.sae@motor-comm.com>
13 - $ref: ethernet-phy.yaml#
18 - ethernet-phy-id4f51.e91a
19 - ethernet-phy-id4f51.e91b
21 rx-internal-delay-ps:
24 internal delay (phy-mode is 'rgmii-id' or 'rgmii-rxid') in pico-seconds.
30 tx-internal-delay-ps:
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/linux/drivers/cpufreq/
H A Dpowernow-k8.h1 /* SPDX-License-Identifier: GPL-2.0-only */
3 * (c) 2003-2006 Advanced Micro Devices, Inc.
9 u32 numps; /* number of p-states */
10 u32 batps; /* number of p-states supported on battery */
13 * vid/fid pairings, but are modified during the ->target() call
15 u32 rvo; /* ramp voltage offset */
18 u32 vstable; /* voltage stabilization time, units 20 us */
22 /* keep track of the current fid / vid or pstate */
26 /* the powernow_table includes all frequency and vid/fid pairings:
28 * frequency is in kHz */
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/linux/Documentation/hwmon/
H A Dlm85.rst79 - Philip Pokorny <ppokorny@penguincomputing.com>,
80 - Frodo Looijaard <frodol@dds.nl>,
81 - Richard Barrington <rich_b_nz@clear.net.nz>,
82 - Margit Schubert-While <margitsw@t-online.de>,
83 - Justin Thiessen <jthiessen@penguincomputing.com>
86 -----------
92 The LM85 uses the 2-wire interface compatible with the SMBUS 2.0
94 temperatures and five (5) voltages. It has four (4) 16-bit counters for
99 The voltage inputs have internal scaling resistors so that the following
100 voltage can be measured without external resistors:
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/linux/Documentation/devicetree/bindings/iio/adc/
H A Dadi,ad4130.yaml1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
4 ---
6 $schema: http://devicetree.org/meta-schemas/core.yaml#
11 - Cosmin Tanislav <cosmin.tanislav@analog.com>
15 https://www.analog.com/media/en/technical-documentation/data-sheets/AD4130-8.pdf
20 - adi,ad4130
29 clock-names:
31 - const: mclk
36 interrupt-names:
42 - int
[all …]
H A Dti,lmp92064.yaml1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Texas Instruments LMP92064 Precision Current and Voltage Sensor.
10 - Leonard Göhrs <l.goehrs@pengutronix.de>
13 The LMP92064 is a two channel ADC intended for combined voltage and current
16 The device contains two ADCs to allow simultaneous sampling of voltage and
17 current and thus of instantaneous power consumption.
22 - ti,lmp92064
27 vdd-supply:
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/linux/Documentation/driver-api/thermal/
H A Dintel_dptf.rst1 .. SPDX-License-Identifier: GPL-2.0
12 ------------
31 ----------------------------
43 "42A441D6-AE6A-462b-A84B-4A8CE79027D3" : Passive 1
45 "3A95C389-E4B8-4629-A526-C52C88626BAE" : Active
47 "97C68AE7-15FA-499c-B8C9-5DA81D606E0A" : Critical
49 "63BE270F-1C11-48FD-A6F7-3AF253FF3E2D" : Adaptive performance
51 "5349962F-71E6-431D-9AE8-0A635B710AEE" : Emergency call
53 "9E04115A-AE87-4D1C-9500-0F3E340BFE75" : Passive 2
55 "F5A35014-C209-46A4-993A-EB56DE7530A1" : Power Boss
[all …]
H A Dcpu-cooling-api.rst22 --------------------------------------------
30 "thermal-cpufreq-%x". This api can support multiple instances of cpufreq
34 cpumask of cpus where the frequency constraints will happen.
42 the name "thermal-cpufreq-%x" linking it with a device tree node, in
54 This interface function unregisters the "thermal-cpufreq-%x" cooling device.
62 CPUs. The current power is calculated as dynamic power (static power isn't
63 supported currently). This power model requires that the operating-points of
73 - The time the processor spends running, consuming dynamic power, as
76 - The voltage and frequency levels as a result of DVFS. The DVFS
78 - In running time the 'execution' behaviour (instruction types, memory
[all …]
/linux/tools/perf/pmu-events/arch/x86/jaketown/
H A Duncore-power.json88 …"PublicDescription": "Counts the number of times when a configurable cores had a C-state demotion",
97 …"PublicDescription": "Counts the number of times when a configurable cores had a C-state demotion",
106 …"PublicDescription": "Counts the number of times when a configurable cores had a C-state demotion",
115 …"PublicDescription": "Counts the number of times when a configurable cores had a C-state demotion",
124 …"PublicDescription": "Counts the number of times when a configurable cores had a C-state demotion",
133 …"PublicDescription": "Counts the number of times when a configurable cores had a C-state demotion",
142 …"PublicDescription": "Counts the number of times when a configurable cores had a C-state demotion",
151 …"PublicDescription": "Counts the number of times when a configurable cores had a C-state demotion",
155 "BriefDescription": "Frequency Residency",
160 …frequency greater than or equal to the frequency that is configured in the filter. One can use al…
[all …]
/linux/arch/arm64/boot/dts/ti/
H A Dk3-am62p-verdin-ivy.dtsi1 // SPDX-License-Identifier: GPL-2.0-or-later OR MIT
7 * https://www.toradex.com/computer-on-modules/verdin-arm-family/ti-am62p
8 * https://www.toradex.com/products/carrier-board/ivy-carrier-board
11 #include <dt-bindings/mux/mux.h>
12 #include <dt-bindings/leds/common.h>
13 #include <dt-bindings/net/ti-dp83867.h>
20 /* AIN1 Voltage w/o AIN1_MODE gpio control */
21 ain1_voltage_unmanaged: voltage-divider-ain1 {
22 compatible = "voltage-divider";
23 #io-channel-cells = <1>;
[all …]
/linux/Documentation/ABI/testing/
H A Dsysfs-platform-dptf4 Contact: linux-acpi@vger.kernel.org
6 (RO) The charger type - Traditional, Hybrid or NVDC.
11 Contact: linux-acpi@vger.kernel.org
19 Contact: linux-acpi@vger.kernel.org
27 Contact: linux-acpi@vger.kernel.org
32 bits[3:0] Current power source
33 - 0x00 = DC
34 - 0x01 = AC
35 - 0x02 = USB
36 - 0x03 = Wireless Charger
[all …]
/linux/Documentation/power/regulator/
H A Dconsumer.rst72 3. Regulator Voltage Control & Status (dynamic drivers)
76 voltage to match system operating points. e.g. CPUfreq drivers can scale
77 voltage along with frequency to save power, SD drivers may need to select the
78 correct card voltage, etc.
80 Consumers can control their supply voltage by calling::
88 when enabled, then the voltage changes instantly, otherwise the voltage
89 configuration changes and the voltage is physically set when the regulator is
92 The regulators configured voltage output can be found by calling::
97 get_voltage() will return the configured output voltage whether the
100 determine the regulator physical output voltage.
[all …]
/linux/Documentation/admin-guide/pm/
H A Dcpufreq.rst1 .. SPDX-License-Identifier: GPL-2.0
19 different clock frequency and voltage configurations, often referred to as
20 Operating Performance Points or P-states (in ACPI terminology). As a rule,
21 the higher the clock frequency and the higher the voltage, the more instructions
23 frequency and the higher the voltage, the more energy is consumed over a unit of
24 time (or the more power is drawn) by the CPU in the given P-state. Therefore
29 as possible and then there is no reason to use any P-states different from the
30 highest one (i.e. the highest-performance frequency/voltage configuration
37 different frequency/voltage configurations or (in the ACPI terminology) to be
38 put into different P-states.
[all …]
/linux/arch/arm/boot/dts/nxp/mxs/
H A Dimx28-tx28.dts1 // SPDX-License-Identifier: GPL-2.0 OR MIT
4 * Copyright 2013-2017 Lothar Waßmann <LW@KARO-electronics.de>
7 /dts-v1/;
9 #include <dt-bindings/gpio/gpio.h>
10 #include <dt-bindings/interrupt-controller/irq.h>
13 model = "Ka-Ro electronics TX28 module";
34 reg = <0x40000000 0>; /* will be filled in by U-Boot */
38 compatible = "w1-gpio";
43 reg_usb0_vbus: regulator-usb0-vbus {
44 compatible = "regulator-fixed";
[all …]
/linux/Documentation/driver-api/
H A Dregulator.rst1 .. Copyright 2007-2008 Wolfson Microelectronics
8 Voltage and current regulator API
18 control voltage and current regulators.
22 both voltage regulators (where voltage output is controllable) and
23 current sinks (where current limit is controllable).
30 --------
38 output voltage or current.
62 drivers use `get <#API-regulator-get>`__ and
63 `put <#API-regulator-put>`__ operations to acquire and release
64 regulators. Functions are provided to `enable <#API-regulator-enable>`__
[all …]
/linux/arch/arm/boot/dts/ti/davinci/
H A Dda850-lego-ev3.dts1 // SPDX-License-Identifier: GPL-2.0-only
8 /dts-v1/;
9 #include <dt-bindings/gpio/gpio.h>
10 #include <dt-bindings/input/linux-event-codes.h>
11 #include <dt-bindings/pwm/pwm.h>
32 compatible = "gpio-keys";
34 pinctrl-names = "default";
35 pinctrl-0 = <&button_bias>;
75 * The EV3 has two built-in bi-color LEDs behind the buttons.
78 compatible = "gpio-leds";
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